I often bring post-it notes and pens to group lunches so we can play drawing games while waiting for our food to come. What we'd do is one person makes a scribble, and someone else has to draw something out of it. Results range from silly stick figure dudes doing crazy things to obscure faces to action poses to abstract and somewhat surreal interpretations of the meaning of life and beyond. Each time, analyzing a scribble forces us into a different gear of thinking. It's a nice brain exercise and fun see what everyone comes up with.

This could work here on DA since we have the Muro Drawing thing. You could bring a scribble onto Photoshop and do a simple warmup doodle or render the hell out of it if you so wish.